• Year
  • 1970
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 73640

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 10
  • Main principle
  • Superheterodyne (common); ZF/IF 461/10700 kHz; 4 AF stage(s)
  • Tuned circuits
  • 6 AM circuit(s)     10 FM circuit(s)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Batteries (any type) / 220/6x1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 cm = 3.9 inch
  • Power out
  • 1 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Mirandocord A 682a - Minerva-Radio Radiola-
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 280 x 150 x 65 mm / 11 x 5.9 x 2.6 inch
  • Notes
  • Wie Minerva Mirando A 681a jedoch mit eingebautem Netzteil für 220V

    • Zwei Drehknöpfe: Ein/Aus - Lautstärke; Senderwahl.
    • Tonblende (Absenkung der Höhen) mittels Taste
    • Batt./Netz Schalter auf der Oberseite
    • Frequenzbereiche:
      • 1.Ausführung (Skala 682a/1) :
        • MW   515 – 1620 kHz (585 – 185 m)
        • KW    5,9 – 6,25 MHz
        • UKW 87,4 – 104 MHz;
      • 2. Ausführung (LW statt KW)
        • LW 150 – 345 kHz

    Jeder Diodentyp ist einmal gelistet.

     

  • Net weight (2.2 lb = 1 kg)
  • 1.9 kg / 4 lb 3 oz (4.185 lb)
  • Source of data
  • -- Original-techn. papers. / Radiokatalog Band 2, Ernst Erb
  • Author
  • Model page created by Wolfgang Bauer. See "Data change" for further contributors.

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